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https://www.readbyqxmd.com/read/29208322/face-mask-leak-with-nasal-cannula-during-noninvasive-positive-pressure-ventilation-a-randomized-crossover-trial
#1
Derek J Brown, Stephen M Carroll, Michael D April
BACKGROUND: Nasal cannula can achieve apneic oxygenation during emergency intubation. However, pre-procedure nasal cannula placement may be difficult in patients undergoing non-invasive positive pressure ventilation (NPPV) prior to intubation. Our objective was to compare mask leak during NPPV with versus without simultaneous application of nasal cannula. We hypothesized mask leak would be no worse with concomitant use of nasal cannula (non-inferiority design). METHODS: We performed a randomized crossover non-inferiority study of healthy volunteers...
December 2, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29198305/comparing-the-efficacy-mask-leak-patient-adherence-and-patient-preference-of-three-different-cpap-interfaces-to-treat-moderate-severe-obstructive-sleep-apnea
#2
Sharn Rowland, Vinod Aiyappan, Cathy Hennessy, Peter Catcheside, Ching Li Chai-Coezter, R Doug McEvoy, Nick A Antic
STUDY OBJECTIVES: To determine if the type of continuous positive airway pressure (CPAP) mask interface influences CPAP treatment efficacy, adherence, side effects, comfort and sleep quality in patients with moderate-severe obstructive sleep apnea (OSA). METHODS: This took place in a hospital-based tertiary sleep disorders unit. It is a prospective, randomized, crossover trial comparing three CPAP interfaces: nasal mask (NM), nasal mask plus chinstrap (NM-CS) and oronasal mask (ONM) each tried in random order, for 4 weeks...
November 29, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29191811/neonatal-mannequin-comparison-of-the-upright-self-inflating-bag-and-snap-fit-mask-versus-standard-resuscitators-and-masks-leak-applied-load-and-tidal-volumes
#3
Anthony Richard Rafferty, Lucy Johnson, Peter G Davis, Jennifer Anne Dawson, Marta Thio, Louise S Owen
OBJECTIVE: Neonatal mask ventilation is a difficult skill to acquire and maintain. Mask leak is common and can lead to ineffective ventilation. The aim of this study was to determine whether newly available neonatal self-inflating bags and masks could reduce mask leak without additional load being applied to the face. DESIGN: Forty operators delivered 1 min episodes of mask ventilation to a mannequin using the Laerdal Upright Resuscitator, a standard Laerdal infant resuscitator (Laerdal Medical) and a T-Piece Resuscitator (Neopuff), using both the Laerdal snap-fit face mask and the standard Laerdal size 0/1 face mask (equivalent sizes)...
November 30, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29152934/a-prospective-randomised-trial-of-the-ambu-auragain-laryngeal-mask-versus-the-lma-protector-airway-in-paralysed-anaesthetised-adult-men
#4
Berthold Moser, Laurent Audigé, Christian Keller, Joseph Brimacombe, Lukas Gasteiger, Heinz R Bruppacher
BACKGROUND: We hypothesise that oropharyngeal leak pressures differ between the LMA® ProtectorTM and the AuraGainTM, two novel supraglottic airway devices offering the possibility of intubation. METHODS: 98 male patients ASAI-II were randomly assigned to the AuraGainTM or ProtectorTM group. Oropharyngeal leak pressure was measured by incrementing cuff volume in 10 ml steps from 10 ml to 40 ml. The primary outcome was oropharyngeal leak pressure at 40 ml cuff volume...
November 17, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29089172/preoxygenation-with-flush-rate-oxygen-comparing-the-nonrebreather-mask-with-the-bag-valve-mask
#5
Brian E Driver, Lauren R Klein, Krista Carlson, Justin Harrington, Robert F Reardon, Matthew E Prekker
STUDY OBJECTIVE: Nonrebreather masks and bag-valve masks are used for preoxygenation before emergency intubation. Flush rate oxygen delivered with a nonrebreather mask is noninferior to bag-valve mask oxygen at 15 L/min. We seek to compare the nonrebreather mask with flush rate oxygen to a bag-valve mask with flush rate oxygen (with and without inspiratory assistance) and determine whether the efficacy of bag-valve mask with flush rate oxygen is compromised by a simulated mask leak. METHODS: We conducted 2 prospective studies in healthy, adult volunteers...
October 28, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/29073915/emt-led-laryngeal-tube-vs-face-mask-ventilation-during-cardiopulmonary-resuscitation-a-multicenter-prospective-randomized-trial
#6
Anna Fiala, Wolfgang Lederer, Agnes Neumayr, Tamara Egger, Sabrina Neururer, Ernst Toferer, Michael Baubin, Peter Paal
BACKGROUND: Laryngeal tube (LT) application by rescue personnel as an alternate airway during the early stages of out-of-hospital cardiac arrest (OHCA) is still subject of debate. We evaluated ease of handling and efficacy of ventilation administered by emergency medical technicians (EMTs) using LT and bag-valve-mask (BVM) during cardiopulmonary resuscitation of patients with OHCA. METHODS: An open prospective randomized multicenter study was conducted at six emergency medical services centers over 18 months...
October 26, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29073266/effect-of-a-short-training-on-neonatal-face-mask-ventilation-performance-in-a-low-resource-setting
#7
Alessandro Mazza, Francesco Cavallin, Anita Cappellari, Antuan Divisic, Ivana Grbin, Jean Akakpo, Abdou Razak Moukaila, Daniele Trevisanuto
BACKGROUND: We assessed whether a short training, effective in a high resource country, was able to improve the quality of face-mask ventilation (FMV) in a low resource setting. METHODS: Local healthcare providers at the Centre Médico-Social, Kouvè, Togo were asked to ventilate a neonatal leak-free manikin before (time-t1) and after (t2) a two-minute training session. Immediately after this section, a further two-minute training with participants aware of the data monitor was offered...
2017: PloS One
https://www.readbyqxmd.com/read/29060706/development-of-respiratory-function-monitor-for-neonates
#8
Fumihiko Takatori, Shinichiro Inoue, Satoru Togo, Shinji Yamamori
Approximately, 10 million babies do not breathe immediately at birth and some of them require positive pressure ventilation. However, inappropriate and excessive tidal volume delivery could lead to lung injury in neonatal patients. We developed a respiratory function monitor which can monitor mask leak, expiratory tidal volume, respiratory rate, peak inspiratory pressure, and end-tidal CO2 on a real-time basis. A neonatal flow sensor was specially designed and was integrated with a small mainstream capnometer, cap-ONE...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29059833/two-parameter-leak-estimation-in-non-invasive-ventilation
#9
Francesco Vicario, Samiya Alkhairy, Roberto Buizza, William A Truschel
In this paper we present a method for the estimation of leaks in non-invasive ventilation. Accurate estimation of leaks is a key component of a ventilator, since it determines the ventilator performance in terms of patient-ventilator synchrony and air volume delivery. In particular, in non-invasive ventilation, the patient flow is significantly different from the flow measured at the ventilator outlet. This is mostly due to the vent orifice along the tube that is used for exhalation, but also to the non-intentional leaks that occur elsewhere in the circuit (e...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29033717/comparison-of-oropharyngeal-leak-pressure-of-air-q%C3%A2-i-gel%C3%A2-and-laryngeal-mask-airway-supreme%C3%A2-in-adult-patients-during-general-anesthesia-a-randomized-controlled-trial
#10
Srinath Damodaran, Sameer Sethi, Surender Kumar Malhotra, Tanvir Samra, Souvik Maitra, Vikas Saini
STUDY OBJECTIVE: Various randomized controlled trials and a meta-analysis have compared i-gel™ and laryngeal mask airway Supreme™ (LMA-S™) in adult patients and found that both the devices provided equivalent oropharyngeal leak pressure (OLP). However, no randomized controlled trial has compared air-Q™ with i-gel™ and LMA-S™ in adult patient. Hence, we designed this study to compare air-Q™ with LMA-S™ and i-gel™ in adult patients. MATERIALS AND METHODS: A total of 75 adult patients of the American Society of Anesthesiologists physical status I/II of both sexes, between 18 and 60 years, were included in this prospective randomized controlled trial conducted in a tertiary care center...
October 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28978815/sp-performance-of-materials-used-for-biological-personal-protective-equipment-against-blood-splash-penetration
#11
Noriko Shimasaki, Katsuaki Shinohara, Hideki Morikawa
For occupational safety, healthcare workers must select and wear appropriate personal protective equipment (PPE), protective clothing and masks, to countermeasure against exposure to infectious body fluid and blood splash. It is important for healthcare workers to ensure the protective performance against penetration of pathogens in each PPE. The International Standards Organization (ISO) 22609 test evaluates the effectiveness of medical face masks to protect against penetration of splashed synthetic blood...
October 5, 2017: Industrial Health
https://www.readbyqxmd.com/read/28968635/a-utility-maximizing-and-privacy-preserving-approach-for-protecting-kinship-in-genomic-databases
#12
Gulce Kale, Erman Ayday, Oznur Tastan
Motivation: Rapid and low cost sequencing of genomes enabled widespread use of genomic data in research studies and personalized customer applications, where genomic data is shared in public databases. Although the identities of the participants are anonymized in these databases, sensitive information about individuals can still be inferred. One such information is kinship. Results: We define two routes kinship privacy can leak and propose a technique to protect kinship privacy against these risks while maximizing the utility of shared data...
September 12, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28928564/comparison-of-i-gel%C3%A2-and-laryngeal-mask-airway-supreme%C3%A2-in-different-head-and-neck-positions-in-spontaneously-breathing-pediatric-population
#13
Swati Gupta, Neelam Dogra, Kanchan Chauhan
BACKGROUND: Although the advantages of ventilation with i-gel™ and laryngeal mask airway Supreme (LMA-Supreme™) has been well documented, they are still under debate for surgeries requiring flexion and extension of neck such as thyroid surgery, tonsillectomy, and neck exploration. Hence, we conducted a study to demonstrate the effect of neck flexion and extension in spontaneously breathing anesthetized pediatric patients utilizing i-gel™ and LMA-Supreme™. METHODS: A prospective, randomized comparative study was conducted on sixty children, thirty each in i-gel™ and LMA-Supreme™ group...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28919105/airflow-error-measurement-due-to-pneumotachograph-mask-rim-leaks
#14
Nicholas A May, Ronald C Scherer
Airflow during speech production is recorded using a pneumotachograph system wherein typically a mask is placed upon the face. Accurate measures of airflow require mask calibration and a complete seal of the mask rim to the face. Literature frequently cites mask rim leaks as causing flow measurement inaccuracies, but quantitative studies of the inaccuracies are needed. The purpose of this study was to determine the degree of inaccuracy of flow measurement using a Glottal Enterprises aerodynamic system for a variety of mask rim leak conditions...
September 14, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28890564/laryngeal-mask-airway-protector%C3%A2-advanced-uses-for-laparoscopic-cholecystectomies
#15
Leng Zoo Tan, Daryl Jian'An Tan, Edwin Seet
The laryngeal mask airway (LMA) Protector™ is a second-generation perilaryngeal sealer type supraglottic airway device recently introduced into clinical practice. We describe our initial experiences with the use of the LMA Protector™ in three patients undergoing laparoscopic cholecystectomies. In all patients, we found the LMA Protector™ to have acceptable placements on the first attempt, adequate oropharyngeal leak pressures and ventilation adequacy.
August 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28863023/evaluation-of-the-augmented-infant-resuscitator-a-monitoring-device-for-neonatal-bag-valve-mask-resuscitation
#16
Desmond J Bennett, Taiga Itagaki, Christopher T Chenelle, Edward A Bittner, Robert M Kacmarek
BACKGROUND: Annually, 6 million newborns require bag-valve-mask resuscitation, and providing live feedback has the potential to improve the quality of resuscitation. The Augmented Infant Resuscitator (AIR), a real-time feedback device, has been designed to identify leaks, obstructions, and inappropriate breath rates during bag-valve-mask resuscitation. However, its function has not been evaluated. METHODS: The resistance of the AIR was measured by attaching it between a ventilator and a ventilator tester...
August 31, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28857785/comparison-of-the-laryngeal-mask-airway-supreme-and-the-i-gel-in-paralysed-elderly-patients-a-randomised-controlled-trial
#17
Myoung H Kim, Jae H Lee, Yong S Choi, Sujung Park, Seokyung Shin
BACKGROUND: The laryngeal mask airway supreme (LMA-S) and i-gel are both popular second-generation supraglottic airway devices that have been widely studied in surgical patients, but their differences in clinical performance in the elderly are not clear. OBJECTIVE: We compared the efficacy and safety of the LMA-S and i-gel in anaesthetised and paralysed elderly patients. DESIGN: A prospective, randomised and parallel study. SETTING: Single-centre trial, study period January 2014 from to October 2016...
August 28, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28802261/how-do-different-brands-of-size-1-laryngeal-mask-airway-compare-with-face-mask-ventilation-in-a-dedicated-laryngeal-mask-airway-teaching-manikin
#18
Mark Brian Tracy, Archana Priyadarshi, Dimple Goel, Krista Lowe, Jacqueline Huvanandana, Murray Hinder
BACKGROUND: International neonatal resuscitation guidelines recommend the use of laryngeal mask airway (LMA) with newborn infants (≥34 weeks' gestation or >2 kg weight) when bag-mask ventilation (BMV) or tracheal intubation is unsuccessful. Previous publications do not allow broad LMA device comparison. OBJECTIVE: To compare delivered ventilation of seven brands of size 1 LMA devices with two brands of face mask using self-inflating bag (SIB). DESIGN: 40 experienced neonatal staff provided inflation cycles using SIB with positive end expiratory pressure (PEEP) (5 cmH2O) to a specialised newborn/infant training manikin randomised for each LMA and face mask...
August 11, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28799279/oesophageal-replacement-with-stomach-a-personal-series-and-review-of-published-experience
#19
Karim Awad, Bruce Jaffray
AIM: To describe the outcomes of oesophageal replacement using stomach in children. METHODS: All children undergoing oesophageal replacement in a regional centre were prospectively recorded in a customised database and subjected to continual follow up. Complications within 30 days were classified as early, and all other complications were classified as late. Outcomes were related to a comprehensive analysis of published experience where studies were classified as having long-term follow up if the median duration exceeded 5 years...
August 11, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28759496/addition-of-nasal-cannula-can-either-impair-or-enhance-preoxygenation-with-a-bag-valve-mask-a-randomized-crossover-design-study-comparing-oxygen-flow-rates
#20
David McQuade, Matthew R Miller, Clare Hayes-Bradley
BACKGROUND: A critical safety component of emergency anesthesia is the avoidance of hypoxemia during the apneic phase of a rapid sequence intubation. Preoxygenation with a bag valve mask (BVM) or anesthetic circuit may be improved with supplemental oxygen by nasal cannula (NC) if there is a mask leak. In addition, NC is recommended for apneic oxygenation after induction and may be placed before preoxygenation. However, the optimum NC flow rate for preoxygenation or whether the presence of NC alone creates a mask leak remains unclear...
July 26, 2017: Anesthesia and Analgesia
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